Noun, pl. neuroglia
1. Sustentacular tissue that surrounds and supports neurons in the central nervous system; glial and neural cells together compose the tissue of the central nervous system. (wordnetweb.princeton.edu)
2. Any of the cells that hold nerve cells in place and help them work the way they should. The types of neuroglia include oligodendrocytes, astrocytes, microglia, and ependymal cells.
Syn: Glial cell.
Word origin: from Greek neuro-, comb. form of neuron “nerve,” originally “sinew, tendon, cord, bowstring,” also “strength, vigor” + Late Greek glia “glue.